Q. 115.0( 1 Vote )
Give an example to show that the product of a rational number and an irrationalnumber may beĂÂ a rational number.
Answer :
A rational number 0 multiplied by an irrational number gives the rational number 0.
0Ăâ2=0
Thus it can be stated that the product of a rational number and an irrational number may be a rational number.
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PREVIOUS In the following equations, find which of the variables x, y, z etc. representrational numbers andĂÂ which represent irrational numbers: (i) x 2 = 5 (ii)y 2 = 9 (iii) z 2 = 0.04 (iv) u 2 = 17/4 (v) v 2 = 3 (vi) w 3 = 27 (vii) t 2 = 0.4 NEXT State with reason which of the following are surds and which are not? (i) √5×√10 (ii) √8×√6 (iii) √27×√3 (iv) √16×√4 (v) 5√8×2√6 (vi)√125×√5 (vii) √100×√2 (viii) 6√2×9√3 (ix)√120×√45 (x) √15×√6
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